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Sewage treatment plants in Australia
There are 8 sewage treatment plants in our Australian listings. The most are in Castle Hill, Parramatta and Preston. On a typical weekday they open at 9 AM and close at 5 PM.
8 businesses Checked October 2026
By suburb
Castle Hill 2Parramatta 1Preston 1Hobart 1Dubbo 1Pakenham 1Toowoomba 1
AAquatec Maxcon Pty LtdEngineering consultant · Water treatment supplier63/2 O'Connell St, ParramattaMon–Fri 9 AM–5 PMSat–Sun ClosedWebsiteAAquatec Maxcon Pty LtdMechanical engineer · Civil engineer10/64 Oakover Rd, PrestonMon–Fri 9 AM–5 PMSat–Sun ClosedWebsiteGGradiant Australia (CRS Water)Water treatment supplier · Sewage treatment plant4/9 Packard Ave, Castle HillMon–Fri 8:30 AM–5 PMSat–Sun ClosedWebsiteHHowrah Plumbing - HobartPlumber · Drainage serviceOffice 12/11 Morrison St, HobartDaily Open 24 hours24/7WebsiteOOlsen Infrastructure Pty Ltd.Construction company · Civil engineerUnit 14/10 Gladstone Rd, Castle HillMon–Fri 8:30 AM–5 PMSat–Sun ClosedWebsiteTTerry’s Septic Tank CleaningSeptic system service · Sewage treatment plant102L Dunedoo Rd, DubboMon Open 24 hoursSun Open 24 hoursSunWebsiteWWesternport Septic Tank CleaningSeptic system service · Sewage treatment plantUnit 4/6 Industrial Dr, PakenhamMon 7:30 AM–4 PMSun ClosedWebsite
WWarrego Water Services ToowoombaIrrigation equipment supplier · Pipe supplier321 Taylor St, ToowoombaWebsite